Threshing-machine.



W. H. DETWIELER.

THRESHING MACHINE. APPLICATION man was, 1912.

Patented Apr. 25,1916.

.4 SHEETS-SHEET L W. H. DETWHZLER.

THRESHING MACHINE. I APPLICATION FJLED AUG.9. 1912.

Patentd Apr. 25,1916;

4 SHEETS-SHEET 2- llllllllllll lllllll' w. H. DETWIEL ER.

THRESHING MACHINE. APPLICATION F ILED AUG-9, I9I2.

. Patent-ed Apr. 1910.

4 SHEETS-SflEET 4.

3 5 Within the .purviewgof the invention,

- K s 3 ts 1 Fig. r sect seiner] the .i'oll'owing specih WILLIAM n.,nnrwrnnnn, or ennnnmnw, OKLAHOMA runnsnme-macmnn;

memos. f

WVIELER, a citizen of theUnited States, re-

siding at Greenfield, in. the countyof Bl-aine and State of Oklahoma,have invented a new tion,reference being had. to the drawings heretoannexed. Y r v i Generally, this invention has reference to -tl1e art ofthreshing machines, and more particularly to the construction,association,

and location of elements" in such machines, aswill create eiiiciencyandincreaseresults without a corresponding increase in efiort.

plify structure and the arrangement there of, and by so doing toincrease efficiency and capacity. i i

It is also an object of the invention to so handle the bulk of the grainstraws, and heads, after the initial breaking and'whip ping treatmentthat they receive at the feed or receiving; end of thelllflcillllfilii'lfib a;

will be separated a nd ohtained therefrom.

It is another object provide means chine. v k

fither Objects ofthe nventiom not; definitely stated. will eomefapparencation;

expressed by the ohjectsahove stated, vars ous forms and constructionsofelements suitably associated in the production of a machine forthreshing, may be employed,

simple and practical manner, and one which probably will be used inpractice, is illustrated in various"views on the accompanying sheets ofdrawings forming a part of thisfspecification. and whereom- I Figure 1is aside elevation of the machine, the'straw-stacker and certainnecessarily connected 'thth s invention bezing omitted; F" i J improveds of thatportion 0 point indicated h enlargement at i around; the pointin Specification of Letters Patent,

and useful Threshing Machine; of which the. following is a full, clear,andrexact descrlpp plan view oi the pa @It is an object of the inventionto simr I ,5 lying Within the circular dotted line 12.

greater portion of the full yield of grain elongated casing or containedwithin and supported byaskele- .ton frame 15, the reaizendgand lower porof the invention to for preventing congestion of the straw as it iscarried throughthe ma and one of such machines, constructed in a otherparts not supporte by thearrou 7, this figure being as still largerscale'than Fig. 6. Fig. is a pel' spectirfe l'lGW of thepa-rtsshown inFig.7, thus heing' a. riew of the (leliyery end of theshaken.sllou'nf-inEigj, "Fifi. 9 is a e p shown .inflFig. T, anal on the saline sciiie..-Fig. 10 is a perspective View of certain parts taken approximately inthe same direction as'Fig. 8, but at a longer range. Fig. 11' is aperspective view/of a screen. taken in the same dimotion as Figs. Band10, but at a closer;

range than eitheiz; Fig. 12 is a o'reatly enlarged reproduction ofthatpm-t 'on ofzFig.

Fig. 13 shows an optional construction of 1 parts shownin Fig. '12. Forpurposes of* thisdescription, theri-ght-hand encl of Figs.

@ 1 try-7.- 9, .12 and 13. assumed to be the rear or, delivery end.

drawings.

The machine'shou u coinprisesfln part, an housing 14, which is srforuiecl into a hopper wadiqib receive the grain'straw. Atoothed.journaled tra nsyersely cylinder 17 is through the hopper 16, and atoothed con cave-plate 18 is mounted under-the cylinder to j c'o-acttherewith in breaking up and whipping the grain straws and heads. Apartial partition 19 dependsf'rom the upper wall 20 of the casing;

A shaker 22,]shown separately Fig.2,

is mounted mov'ably in the casing 14, andis' d by pivoted hangers 23which '0 revoi he i vmg at shaker v26;, shown, separately? in H 'ikewisexnountd "inrearii ard p Patented Apr. 25, 1916. Application filedAugust9,1912. Serial No.714,170.

14 in front of cylinder 17 to prevent the straw from being so A thecasino 14:, in'iniediately below the shaker 5252. and is hnn to saidcasin by nroted H g l hangers all. For impartnip: to the shakers and .26o foreaml-aft vibratory movement, a crank-shalt it-l 1s Jourualedtrans-- versely through the front portion of the frame lilyamlconnecting-rmls 2 3 and 30, respectively, extend from the cranks of saidshaft and pirotally attached to said shakers. The shaft E38 is driven byany suitable means, preferably that well known in the art.

Within the rear portion of thc casino, bl,

which receives the grain and othcr matter that pa. down through the opcnportion of the rear or lOWUl' shaker 2b, and an airfan all) providml tocause a more or less forcible blast of air rcaruwn'dly through saidriddle-box. i 1

Upon delivery or the grain and other mat ter onto the screen 3!), ti 5air draft upward through said screen from the air-loin l0 resists theprimipitation of a part of the lighter mat or through tho screen, thegrain and portions of the heavierlnatter lallino through the screen andtoward and upon the fi'n'nal'rlly inclined bottom 4- of the quired, the(.lclivcry of the matter riddle-ho); through the l i blast; Theseparated grain, bring the heavier matter passing; through theriddle-hon, misses torn-11rd downthc inclined bottom -11 to finaldclivery from the machine through a llltiklillly descending trougl'lformed in the lower front corner o'l? said riddlcdnnc. While such grainas has not been entirely freed fron'i or is ciunrhtby the lighter nmtteris driven rcarwm dly up the inclined bottom ill and into a lateraldelivery troutrl'i l3 jwlormcd across the lower rear corner ofsaitlriddlebox. The grain and matter that ejected from the rear of theriddle-boxby the air draft is carried upward andfforward on the outsideof the casing" 14 by an elevator H, to be again delivered into thecasing ll onto the first or upper shaker fora-c :Witation.

Since, in. the threshingot Knfirj corn, for which this invention isprimarily designed, only breaking or whipping, operation of tho cylinder17 and ctmcavcplates 18 re: by the elevator 44; into the casing 14 ismade rear- War'dly of said cylinder, and, in fact, rearward intoposition to deliver ward of the heater 2L as shown, a stopboard as beingprovided and depending from the top 20 of said casing 14 to prevent theincoming matter from the elevatorspout l6 being unduly fanned from itsnormal course by said heater.

The construction and operation of the parts thus described does notdiffer materially 'from those found in other machines of this class,except in the location of the point at which the elevator l-l, deliversits c0ntents into the casing '14 but they do 00-1101; with the newlyconstructed and arranged parts presently to be destivri'herl inattaining the objects of the invention.

In the improved arrangement and c struction of parts, half ll" of thefirst or upper shaker 522 is disposed horizontally, but the rear half 48is inclined upward at a small angle as it extends to the rear end of themachine. This upward inclination of the rear half l8 of the shaker hasthe etl'ect of partially rctarding the progress ofthe, straw, therebyallowing more time for a more complete separation of the graintherefrom. The inclination of the rear hall 48 of the shalfer 22,however, is not such, with reference to the top 20 of the casing- 14, aswill ordinarily pern'iit a congestion of the straw bulk, which, whencongestion obtains in devices of this character, finally renders suchdcvices inoperative.

best shown in Fig, -l approximately the front two-fifths o1" thc shakeris provided with a lmttorn al which extends rcarits contents into theshaker P36, in further completing the construction of the shaker 22, a,series of parallel ribs 50, are located tran verselywith respectthereto, the ends of said ribs resting upon and being secured to theside pieces 51. of said shaker. 'ln crosssection, each rib no issmbstantially onequarter oi the area of a c] role, as best shown in Fig.12, one face if! of each rib lying upon the upper edges :13 of thesidepiecc-s 51 while the other face 54 is disposed rearward andperpendicular to said lower face The straw, as it comes from thecylinder 17, drops upon the ribs 50, and, under the influence of thevibratory movement given to the shaker 22, is worked gradually rearwardand thoroughly agitated to remote the grain.

-Tn mierationpthe ribs, as arranged, have tho effect of rcarwardlyinclined teeth, moving the straw gradually rear ard as stated; but, onaccount of the cylindrical surface 55 of each rib, the short portions ofthe broken straws are given a nnn'emcnt not produced by other nmchlnes,with the result that a nun-c complete separation of the seed iseffected. y y In actual practnee, the shorter pieces of straw, duringtheir travelover the rlbs, and

approximately the front by reason of the movement of the bulk of strawsare tilted rearward, and over the corner 56 of each rib, when they willbe allowed to pass on with the bulk .and

thereby prevent temporary retention of pertions of the bulk which wouldincrease congestion if the shorter pieces remained projecting upwardfrom the ribs. This han' dling of the straw retards its passage throughthe machine suiticiently to allow a full separation of all grain. andthe cylindrical surface of the ribs otters a mmnnum retard of themovement of the grain down through the shaker 22.

In Fig. 13 'an optional form of rib is shown, the lines 57 indicatingthe rear faces 54 previously described. In this optional form of rib, asurface 58, in a horizontal plane, tangent to the curved surface thesesurfaces 58, when used, having the effect of allowing the straw toremain longer on the. shaker before its final delivery from the rear ofthe machine. All the matter passing through the ribs 50 of theuppershaker 22 is delivered onto the second shaker 26 for furthertreatment, the bulk of the straw passing off the rear end of the uppershaker and out of the machine. i

The floor 59 of the front portion of the lower shaker 26 has its,surface formed into transverse rearwardly inclined teeth 60,

'- adapted to urge the matter rearward as the shaker vibrates, but therear, or remaining portion of said shaker is provided with a extendsrearward from the line 57 bottom screen (51 better shown in Figs. 7 to8), this screen being directly above the riddlebox 3'1. The objectof'this screen 61 is to permit the spherical Kafir corn seed, which isheavier thanthe chaff and other matter, to readily run down throughopenings therein in streams into the riddle-box 31,- and in theattainment of this objecta screen: for that purpose may be made with asuitable form of delivery troughs. In the present instance, however, informing this screen 61, a blank of sheet metal 62 is cut or slitted onlines (33 transversely of the screen, the portion 64 of the metalimmediately in front-of each slit being pressed upward and a portion 65immediately in the rear being pressed downward. In thus slitting andshaping the metal, a series of small forwardly-descending deliverytroughs 66 are provided, with the result that the spherical Kafir cornseed will run down through said troughs into the riddle-box. The trashthat follows down through the screen 61 with the grain is caught andblown rearward by air which passes up through the riddle screen 39 fromthe fan 10.

Having thus described the invention, I claim A threshing machinecomprising in combination with means for introducing the grain theretoofa single upper screen' for separating the grain and chaff from thestraw. and means for separating the grain from the chad. said upperscreen havi a. reciprogatory movement and exten mg from a pointimmediately below ducing'means to-a point in the rear of the .cha-fi'separating means, the rear portion of said upper screen being inclinedupwardly at a slight angle. and comprising transverse bars, the forwardsurface of which is cylin 85 drical.

Signed at Greenfield, in the county of Blaine, and Stateof Oklahoma, onthis 20th day of July. 1912. Q

" WILLIAM H. DETWI LER.

llitnesses': v 7

ROY' F. Browns,

F. E. Gannmmnn.

the intro-

